Washing and cleansing textile fibers



Patented Nov. 14, 1933 JNITED STATES PATENT OFFICE WASHING AND CLEANSINGTEXTILE FIBERS ware No Drawing. Application May 4, 1929, Serial No.360,617, and in Germany November 8, 1926 Claims.

An application was filed in Germany Nov. 8,

1926, bearing Serial No. I. 29,470.

The present invention relates to a process of washing and cleansingtextile fibers. 5 The subject-matter of the present application is acontinuation-in-part of one copending application for an improvement inTreatment of vegetable, animal and other industrial materials Ser. No.243,466, filed December 29, 1927.

We have found that aliphatic or mixed hydroaromatic-aliphatic ammoniaderivatives, which contain one or more hydroxy alkyl groups (ROH;R=alkyl or cycloalkyl) can be employed with advantage as auxiliaries forwashing and cleansing textiles, for instance animal textile fibers. Forthe sake of brevity the aforesaid aliphatic or mixedhydroaromatic-aliphatic ammonia derivatives are hereinafter referred tocollectively as aliphatic ammonia derivatives containing at least onehydroxy alkyl group. Both these bases and their salts are very readilysoluble in water, and assist the thorough wetting or completepenetration of the said material by the aqueous washing and cleansingbaths. The washing andcleansing properties of the said bases, or theirsalts, for instance with higher fatty acids, are due to their dissolvingand dispersing action on fats, oils, waxes, resins and the like. Theymay be used either alone or in a conjunction with organic saponaceoussubstances,

that is soaps, Turkey-red oils, sulphonic acids, especially alkylatedaromatic sulphonic acids, or their salts, or with organic solvents, or aplurality of these substances. Cyclohexylmonoethanolamine,cyclohexyldiethanolamine, butylethanolamines, triethanolamine,diethanolamine and the like may be mentioned as typical bases of thekind in question. I

By reason of the fact that the bases to be used despite their. powerfulbasic properties do not attack the animal fiber, even when in highconcentration, they are excellently adapted for the washing andcleansingof, such fibers in all cases where the use of substances withan alkaline action is essential, and where the use of other alkalinesubstances would involve the risk of damaging the quality of crude,semi-finished and finished materials made from animal fibers. Owing tothe favorable properties of the bases to be used, the usual workingmethods can be carried out in a substantially more energetic manner,woolen goods, for example, being treated with the said organic bases atbofling heat, which is impossible when other alkaline agents areemployed.

The following examples will further illustrate the nature of the saidinvention which however is not limited thereto.

Example 1 Example 2 A bowking liquor is mixed with 500 grams oftripropanolamine per 100 kilograms of cotton material. The high solventcapacity for cotton wax, and the high penetrative power of the trisopropanolamine, assists the bowking process in a very high degree, andenables the usual period of boiling to be shortened by a third to ahalf.

Example 3 A scouring bath (at 40 centigrade) for 100 kilograms of oilyand greasy wool is mixed with 5 grams of soap and 5 cc. ofdiethanolamine per litre of bath liquor, and the goods are worked forhalf an hour, squeezed and rinsed. An ex- 90 cellent cleansing effect isobtained.

- Example 4 50 kilograms of unfinished worsted fabric are subjected tothe usual treatment in the carbonizing apparatus, with an addition of 1to 2 grams of triethanolamine per litre. This treatment completelyremoves all the softening oil present in the goods.

What we claim is:

1. The process of washing and cleansing textile fibers with the aid ofan aqueous bath, with which an aliphatic ammonia derivative containingatleast one hydroxy alkyl group is incorporated.

2. The process of washing and cleansing animal textile fibers with theaid of an aqueous alkaline bath, with which an aliphatic ammoniaderivative containing at least one hydroxy alkyl group is incorporated.

' 3. The process of washing and cleansing animal textile fibers with theaid of an aqueous alkaline bath, in which an ethanolamine isincorporated with the said bath.

4. The process of washing and cleansing animal textile fibers with theaid of an aqueous alkaline bath in which a triethanolamine isincorporated with the said bath.

5. As a composition of matter, a washing and cleansing bath comprising asoap and an aliphatic ammonia derivative containing at least one hydroxyalkyl group.

6. As a composition of matter, a washing and cleansing bath comprisingan organic saponaceous substance and an aliphatic ammonia derivativecontaining at least one hydroxy alkyl 7. As a composition of matter, awashing and cleansing bath comprising an organic saponaceous substanceand an ethanol amine.

8'. As a composition of matter, a washing and cleansing bath comprisingan organic saponaceous substance and triethanol amine.

9. As a composition of matter, a washing and HEINRICH ULRICH. cUR'rSCHUSTER.

DI S O 1. Al M E R 1,935,217.Heinrich Ulrich and Curt Sehuster,Ludwigshafen-on-Rhine, Germany;

-WASHING AND CLEANSING TEXTILE FIBERS.

Patent dated November 14,

1933. Disclaimer filed July 7, 1934, by the assignee, General AnilineWorks,

Inc.

Enters this disclaimer to certain of the dams of the above identifiedpatent,

and

Hereby disclaims from the scope of claims 1 and 2 any process in whichthe aliphatic ammonia derivative is employed in the form of a salt ofsuch aliphatic ammonia derivative with an acid.

Hereby disclaims from the scope of claims 3 and 4 any process in whichthe ethanol amine is employed in the form-of a salt of such ethanolamine with an acid. Hereby disclaims from the scope of claims 6-10,inclusive, any composition in which the organic saponaceous substance isin chemical combination with the aliphatic ammonia derivative.

[Oficial Gazette August 7,.1984.]

